def _parse_list(l):
assert len(l) == 2, 'Max key fee is made up of two values: "AMOUNT CURRENCY".'
try:
amount = float(l[0])
except ValueError:
raise AssertionError('First value in max key fee is a decimal: "AMOUNT CURRENCY"')
currency = str(l[1]).upper()
if currency not in CURRENCIES:
raise InvalidCurrencyError(currency)
return {'amount': amount, 'currency': currency}
def _parse_list(l):
if l == ['null']:
return None
assert len(l) == 2, ('Max key fee is made up of either two values: '
'"AMOUNT CURRENCY", or "null" (to set no limit)')
try:
amount = float(l[0])
except ValueError:
raise AssertionError(
'First value in max key fee is a decimal: "AMOUNT CURRENCY"')
currency = str(l[1]).upper()
if currency not in CURRENCIES:
raise InvalidCurrencyError(currency)
return {'amount': amount, 'currency': currency}
def validate(self, value):
if value is not None:
assert isinstance(value, dict) and set(value) == {'currency', 'amount'}, \
f"Setting '{self.name}' must be a dict like \"{{'amount': 50.0, 'currency': 'USD'}}\"."
if value["currency"] not in CURRENCIES:
raise InvalidCurrencyError(value["currency"])